N. N. Il'ichev, A. A. Gladilin, È. S. Gulyamova, V. P. Kalinushkin, S. A. Mironov, A. V. Sidorin, P. P. Pashinin, V. V. Tumorin, E. M. Gavrishchuk, D. V. Savin, S. A. Rodin, V. B. Ikonnikov, M. V. Chukichev, “Kinetics of the luminescence decay of Fe<sup>2+</sup> impurity centres in polycrystalline ZnSe upon excitation by an electron beam”, Kvantovaya Elektronika, 2020, Volume 50, Number 8,Pages <nobr>730

This article is cited in 5 papers

Lasers, active media

Kinetics of the luminescence decay of Fe²⁺ impurity centres in polycrystalline ZnSe upon excitation by an electron beam

N. N. Il'ichev^a, A. A. Gladilin^a, È. S. Gulyamova^a, V. P. Kalinushkin^a, S. A. Mironov^a, A. V. Sidorin^a, P. P. Pashinin^a, V. V. Tumorin^a, E. M. Gavrishchuk^b, D. V. Savin^b, S. A. Rodin^b, V. B. Ikonnikov^b, M. V. Chukichev^c

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod
^c Faculty of Physics, Lomonosov Moscow State University

Abstract: The kinetics of the decay of the luminescence of Fe²⁺ ions is measured at nitrogen temperature in polycrystalline ZnSe excited by a short pulse of accelerated electrons. The time dependence of the luminescence intensity differs from the exponential one, observed upon excitation of luminescence by a short light pulse. The obtained nonexponential dependence is theoretically described. The explanation is based on the quenching effect of the excited state of the Fe²⁺ ion by free electrons of the volume charge of the current of accelerated electrons in the sample (Auger effect). It was shown that the relaxation of the volume charge after the electron-accelerating voltage is removed makes a significant contribution to the decay kinetics of the impurity luminescence.

Keywords: Auger effect, ZnSe : Fe²⁺ crystal, electron-impact excitation of luminescence.

Received: 15.11.2019
Revised: 22.04.2020